How do you "normally" joining the route from the middle?

[jfheath]

Oh, so you're numbering them in the Basecamp?
It's an additional step but I'll try and see if it'll work.

Yes. I know that you can route and shape on the Zumo itself, but really, my fingers are too big, the screen is too sensitive (at times). Putting a long route together often results in making an error part way through and having to restart.
(Although the XT is better, once you get the idea that you put via points in first, then shape the route.)

It doesn't help that the XT still renames and moves via points if you change them to shaping points on the Xt screen